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Hungarian Machine Factories type 70
Hungarian State Railways series XXIc, Hungarian State Railways series 490 and Imperial-Royal Army Railway series IVa
Austria-Hungary | 1906
284 produced
764-243 of the Romanian State Industrial Railways (CFI) in June 2013 in Comandau
764-243 of the Romanian State Industrial Railways (CFI) in June 2013 in Comandau
Herbert Ortner
VariantMÁVAGReșița, Reghin
General
Built1906-1914, 1942-19501951-1958, 1984-1988
ManufacturerMÁVAGReșița, Reghin
Axle config0-8-0T (Eight-coupled) 
Gauge2 ft 5 15/16 in (Bosnian gauge)
Dimensions and Weights
Length24 ft 5 7/8 in
Wheelbase10 ft 11 7/8 in
Rigid wheelbase10 ft 11 7/8 in
Service weight48,502 lbs54,675 lbs
Adhesive weight48,502 lbs54,675 lbs
Axle load12,125 lbs13,669 lbs
Water capacity528 us gal
Fuel capacity2,205 lbs (coal)2,866 lbs (coal)
Boiler
Grate area11.2 sq ft12.7 sq ft
Firebox area50.6 sq ft55.2 sq ft
Tube heating area467.7 sq ft393.6 sq ft
Evaporative heating area518.3 sq ft448.9 sq ft
Total heating area518.3 sq ft448.9 sq ft
VariantMÁVAGReșița, Reghin
Power Plant
Driver diameter29.5 in
Boiler pressure203 psi
Expansion typesimple
Cylinderstwo, 12 13/16 x 13 3/4 intwo, 12 5/8 x 14 3/16 in
Power
Power sourcesteam
Indicated power288 hp (215 kW)
Estimated power308 hp (230 kW)
Optimal speed14 mph15 mph
Top speed19 mph
Starting effort13,189 lbf13,151 lbf
Calculated Values
steam locomotive
freight
narrow gauge
tank locomotive
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